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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/11/2019 |
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Data da última atualização: |
25/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ABDALLA FILHO, A. L.; LIMA, P. de M. T.; SAKITA, G. Z.; SILVA, T. P. D. e; COSTA. W. dos S. da; GHINI, R.; ABDALLA, A. L.; PICCOLO, M. de C. |
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Afiliação: |
ADIBE LUIZ ABDALLA FILHO, CENA-USP; PAULO DE MELLO TAVARES LIMA, CENA-USP; GABRIEL ZANUTO SAKITA, CENA-USP; TAIRON PAZZNINZIO DIAS E SILVA, CENA-USP; WILIAM DOS SANTOS DA COSTA, CENA-USP; RAQUEL GHINI, CNPMA; ADIBE LUIZ ABDALLA, CENA-USP; MARISA DE CASSI PICCOLO, CENA-USP. |
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Título: |
CO2 fertilization does not affect biomass production and nutritive value of a C-4 tropical grass in short timeframe. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Grass and Forage Science, v. 74, n. 4, p. 670-677, 2019. |
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ISSN: |
1365-2494 |
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DOI: |
https://doi.org/10.1111/gfs.12443 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Increased atmospheric carbon dioxide (CO 2 ) is a consequence of recent anthropogenic environmental changes, and few studies have evaluated its effects on tropical grasses used in Brazilian pastures, the main feed source for major part of ruminant livestock. This study evaluated forage production, chemical composition, in vitro total gas pro‐ duction and organic matter degradability of Brachiaria brizantha under contrasting CO 2 atmospheric conditions in a free air carbon dioxide enrichment (FACE) facility. The forage plants were sown in each of the 12 octagonal rings of the FACE facility: six under ambient atmospheric CO 2 concentration of approximately 390 μmol/mol, here‐ after referred to as control (CON) plots, and other six rings enriched with pure CO 2 flux to achieve a target CO 2 concentration of 550 μmol/mol, hereafter called elevated CO 2 (eCO 2 ) plots. Soil samples were collected to determine carbon and nitrogen con‐ centrations. After seventy days of sowing, a standardization cutting was performed and then at regular intervals of 21 days the forage was harvested (ten harvest dates) and forwarded to laboratorial analyses. Forage above‐ground biomass production (dry matter (DM): 6,143 vs. 6,554 kg/ha), as well as morphological characteristics (leaves: 71% vs. 68%; stem: 28% vs. 31%), chemical composition (crude protein: 162.9 vs. 161.8; neutral detergent fibre: 663.8 vs. 664.3; acid detergent fibre: 369.5 vs. 381; lignin: 60.1 vs. 64.1 g/kg DM; total C: 45.9 vs. 45.9; total N: 2.8 vs. 2.8; total S: 0.2% vs. 0.2%), organic matter in vitro degradability (573.5 vs. 585.3 g/kg), methane (5.7 vs. 4.3 ml/g DM) and total gas (128.3 vs. 94.5 ml/g DM) production did not differ signifi‐ cantly between CON and eCO 2 treatments (p > .05). The results indicated that at least under short‐term enrichment, B. brizantha was not affected by eCO 2 . MenosAbstract: Increased atmospheric carbon dioxide (CO 2 ) is a consequence of recent anthropogenic environmental changes, and few studies have evaluated its effects on tropical grasses used in Brazilian pastures, the main feed source for major part of ruminant livestock. This study evaluated forage production, chemical composition, in vitro total gas pro‐ duction and organic matter degradability of Brachiaria brizantha under contrasting CO 2 atmospheric conditions in a free air carbon dioxide enrichment (FACE) facility. The forage plants were sown in each of the 12 octagonal rings of the FACE facility: six under ambient atmospheric CO 2 concentration of approximately 390 μmol/mol, here‐ after referred to as control (CON) plots, and other six rings enriched with pure CO 2 flux to achieve a target CO 2 concentration of 550 μmol/mol, hereafter called elevated CO 2 (eCO 2 ) plots. Soil samples were collected to determine carbon and nitrogen con‐ centrations. After seventy days of sowing, a standardization cutting was performed and then at regular intervals of 21 days the forage was harvested (ten harvest dates) and forwarded to laboratorial analyses. Forage above‐ground biomass production (dry matter (DM): 6,143 vs. 6,554 kg/ha), as well as morphological characteristics (leaves: 71% vs. 68%; stem: 28% vs. 31%), chemical composition (crude protein: 162.9 vs. 161.8; neutral detergent fibre: 663.8 vs. 664.3; acid detergent fibre: 369.5 vs. 381; lignin... Mostrar Tudo |
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Palavras-Chave: |
In vitro gas production. |
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Thesagro: |
Biomassa; Dióxido de Carbono; Grama; Mudança Climática. |
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Thesaurus NAL: |
Biomass production; Carbon dioxide; Carbon dioxide enrichment; Elevated atmospheric gases; Tropical grasslands. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03009naa a2200349 a 4500
001 2115082
005 2019-11-25
008 2019 bl uuuu u00u1 u #d
022 $a1365-2494
024 7 $ahttps://doi.org/10.1111/gfs.12443$2DOI
100 1 $aABDALLA FILHO, A. L.
245 $aCO2 fertilization does not affect biomass production and nutritive value of a C-4 tropical grass in short timeframe.$h[electronic resource]
260 $c2019
520 $aAbstract: Increased atmospheric carbon dioxide (CO 2 ) is a consequence of recent anthropogenic environmental changes, and few studies have evaluated its effects on tropical grasses used in Brazilian pastures, the main feed source for major part of ruminant livestock. This study evaluated forage production, chemical composition, in vitro total gas pro‐ duction and organic matter degradability of Brachiaria brizantha under contrasting CO 2 atmospheric conditions in a free air carbon dioxide enrichment (FACE) facility. The forage plants were sown in each of the 12 octagonal rings of the FACE facility: six under ambient atmospheric CO 2 concentration of approximately 390 μmol/mol, here‐ after referred to as control (CON) plots, and other six rings enriched with pure CO 2 flux to achieve a target CO 2 concentration of 550 μmol/mol, hereafter called elevated CO 2 (eCO 2 ) plots. Soil samples were collected to determine carbon and nitrogen con‐ centrations. After seventy days of sowing, a standardization cutting was performed and then at regular intervals of 21 days the forage was harvested (ten harvest dates) and forwarded to laboratorial analyses. Forage above‐ground biomass production (dry matter (DM): 6,143 vs. 6,554 kg/ha), as well as morphological characteristics (leaves: 71% vs. 68%; stem: 28% vs. 31%), chemical composition (crude protein: 162.9 vs. 161.8; neutral detergent fibre: 663.8 vs. 664.3; acid detergent fibre: 369.5 vs. 381; lignin: 60.1 vs. 64.1 g/kg DM; total C: 45.9 vs. 45.9; total N: 2.8 vs. 2.8; total S: 0.2% vs. 0.2%), organic matter in vitro degradability (573.5 vs. 585.3 g/kg), methane (5.7 vs. 4.3 ml/g DM) and total gas (128.3 vs. 94.5 ml/g DM) production did not differ signifi‐ cantly between CON and eCO 2 treatments (p > .05). The results indicated that at least under short‐term enrichment, B. brizantha was not affected by eCO 2 .
650 $aBiomass production
650 $aCarbon dioxide
650 $aCarbon dioxide enrichment
650 $aElevated atmospheric gases
650 $aTropical grasslands
650 $aBiomassa
650 $aDióxido de Carbono
650 $aGrama
650 $aMudança Climática
653 $aIn vitro gas production
700 1 $aLIMA, P. de M. T.
700 1 $aSAKITA, G. Z.
700 1 $aSILVA, T. P. D. e
700 1 $aCOSTA. W. dos S. da
700 1 $aGHINI, R.
700 1 $aABDALLA, A. L.
700 1 $aPICCOLO, M. de C.
773 $tGrass and Forage Science$gv. 74, n. 4, p. 670-677, 2019.
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